1/* 2 * Copyright 2011 Google Inc. 3 * 4 * Use of this source code is governed by a BSD-style license that can be 5 * found in the LICENSE file. 6 */ 7#include "Benchmark.h" 8#include "SkCanvas.h" 9#include "SkPathUtils.h" 10#include "SkRandom.h" 11#include "SkString.h" 12#include "SkTime.h" 13 14#define H 16 15#define W 16 16#define STRIDE 2 17 18//this function is redefined for sample, test, and bench. is there anywhere 19// I can put it to avoid code duplcation? 20static void fillRandomBits( int chars, char* bits ){ 21 SkRandom rand(SkTime::GetMSecs()); 22 23 for (int i = 0; i < chars; ++i){ 24 bits[i] = rand.nextU(); 25 } 26} 27 28static void path_proc(char* bits, SkPath* path) { 29 SkPathUtils::BitsToPath_Path(path, bits, H, W, STRIDE); 30} 31 32static void region_proc(char* bits, SkPath* path) { 33 SkPathUtils::BitsToPath_Region(path, bits, H, W, STRIDE); 34} 35 36/// Emulates the mix of rects blitted by gmail during scrolling 37class PathUtilsBench : public Benchmark { 38 typedef void (*Proc)(char*, SkPath*); 39 40 Proc fProc; 41 SkString fName; 42 char* bits[H * STRIDE]; 43 44public: 45 PathUtilsBench(Proc proc, const char name[]) { 46 fProc = proc; 47 fName.printf("pathUtils_%s", name); 48 49 50 } 51 52protected: 53 virtual const char* onGetName() { return fName.c_str(); } 54 55 virtual void onDraw(const int loops, SkCanvas* canvas) { 56 57 for (int i = 0; i < loops; ++i){ 58 //create a random 16x16 bitmap 59 fillRandomBits(H * STRIDE, (char*) &bits); 60 61 //use passed function pointer to handle it 62 SkPath path; 63 fProc( (char*) &bits, &path); 64 } 65 } 66 67private: 68 typedef Benchmark INHERITED; 69}; 70 71DEF_BENCH( return SkNEW_ARGS(PathUtilsBench, (path_proc, "path")); ) 72DEF_BENCH( return SkNEW_ARGS(PathUtilsBench, (region_proc, "region")); ) 73